Process for increasing the heat-resisting properties of bituminous or tarry materials.



KARL LUDWIG VALENTIN ZmER, OI HAMBURG, GERMANY.

PROCESS FOR INCREASING THE HEAT-RESISTING I'ROPERTIES O Tartar xsrnnuns.

1,084,520. No Drawing.

7 Specification of Letters Patent. Ipplieation and June is, 1910. Serial in. 567,894.

PatentedJan.1L,191$;

To all whom it may concern: ,Be it known that I, KARL LUnwm VALEN- TIN ZIMMER, manufacturer,"a subject of the German Emperor, residing at Hamburg,

Germany, have invented a certain newand useful Process for Increasing the Heat-Resisting Properties of BitUIDlIlOILS or Tarry Materials, of which the following is a specification.

The present to treat bituminous or tarry substances, such as mineral resins, tar, pitch, oudron and similar materials so that-they come more difiicult to fuse, more fire-resisting and almost incombustible. r

If bituminous or tarry materials are liquefied by heat and ap lied as a aint or coat-- ing to vertical or s anting wa ls, thesema-.

f of bituminous or tarry materials and for interials have the undesirable property 0 running ofl in the shape of-waves, whereh the uniformity of the layer is destroye The present process prevents this defe ctand at the 'same time renders these products morefire-resisting, so that they can be used in numerous cases, where hitherto their use had been rendered impossibleby the danger of fire. For this purpose I incorporate with the said'products, such as all kinds of mineral resins,v tar and pitch, a material capable of absorbing and combining with chlorin, and then treat the product by means of hexa-chloreth'ane. Among chlorin-carriers are the unsaturated fatty acid esters, such as linseed oil, rape oil and similar materials. Specially suitable for this purpose is the milky juice of the plant guayule.

The following exam le'will show the de tails of procedure: A out 20 parts of the above mentioned fatty acid esters are melted of steam.

invention has for its object,

tures.

together with 80 parts of mineral resins,

r summons one andhexa-chlor-ethane is introduced into the molten mass.

It is advantageous to relieve the tarry- Eroduct of water,'before further use, by eating it in a retort, until it ceases to give.

The products thusobtained have a substantial y higher melting point than the raw materials, and are therefore not liable tochan their sha e even at high temperaoreover, t ey are difficult to burn, so that the in which t e-tarry or bituminous materials would be unsuitable owing to-their danger of catching fire. v I I What I claim is can be used in numerous cases,

- 1 The process for reducing the fusibility creasing their resistance to heat, which con sists in mixing the said materials with sub stances adapted to absorb chlorin, and treating the mixture, with hexa-chlor'ethane with the aid of heat, substantially as describeig 2; The process for increasing the resisg... w

a'nee' of bltuminous or tarry materials, to heat, which consists in mixing the said ma; terial with an'unsaturated fiatty acid ester. and treating the mixture with hexa-chlorethane, withth'e aid as described.

In testimony whereof I have hereunto set] of heat, substantially 

